what size tank was the fish kept in? What temperature? How often water changes and what amount of water during water change? Any other fish in same tank if so what?I had this pearlscale fish for about 2-3 month and everything was fine, today it wasn’t really swimming and just lay on the bottom and where the water goes through to the filtration, I was wondering why it had died because the water parameters are fine and in about an hour it’s condition deteriorated until it died, I’ll put some images and can anyone help as to why it may have died